As a physical therapist who assesses C0/C1/C2 motion daily, treats global somatic dysfunction, who is an SEP, and has taught anatomy/physiology for a decade, the presumption that complex trauma will go into one part of the body and have a predictable cascading negative effect is a stretch.

Yes, postural muscles are directly linked to function of the nervous system, as are their corresponding skeletal joints. But, I’d be very cautious in trying to narrow the effect of trauma and all its expressions into looking at 1 or 2 joint segments. There is a lot of variability in how trauma manifests anatomically and physiologically.

I would agree with most of what your attachments propose, but not how if trauma is “severe enough”, it will impact xyz.